[llvm] [CodeGen] Introduce Static Data Splitter pass (PR #122183)

[Mingming Liu via llvm-commits]

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@@ -28,15 +28,17 @@ namespace llvm {
 class MachineBasicBlock;
 class DataLayout;
 class raw_ostream;
+enum class DataHotness;
 
 /// MachineJumpTableEntry - One jump table in the jump table info.
 ///
 struct MachineJumpTableEntry {
   /// MBBs - The vector of basic blocks from which to create the jump table.
   std::vector<MachineBasicBlock*> MBBs;
 
-  explicit MachineJumpTableEntry(const std::vector<MachineBasicBlock*> &M)
-  : MBBs(M) {}
+  DataHotness Hotness;
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mingmingl-llvm wrote:

done, and described its usage in the comment.

https://github.com/llvm/llvm-project/pull/122183